Seraphfeather

Completionist Completed all missions in Secret Armory

Encounter of the block kind Lost to the alien invasion in Toy Wars.

Sometimes Perform a landing roll

A tremor in the Force Play once as all the different heroes in the original game (Multiplayer)

Everybody Benefits! Adopt a pet

Leap of Fail Perform a leap of faith as Yasuke

Woodworker Place 5 barricades as a Defender in Quick Match/Ranked Multiplayer.
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Full Auto Get 5 kills with an AR.
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It's Raining Cats and Hotdogs Completed a round using the Mutator.

Best of the Best Invest in each type of upgrade available for a specialization.

Hell-Burbia Completed the larger challenge in the Hell-Burbia coliseum

The Last Laugh The joke's on who?

Playtime's over, kids! Clear the toys room in Ghost House.

Love is the Fifth Dimension Marry your friends.

Who Collects The Collector? Defeat the wandering Debt Collector.

Once upon a time in VR Clear the Rookie level in Wanted!

Shut Down Shut down an entire Tower Network

The Scalpel Singleplayer: Achieve 20 total knife kills

Danger Zone Buy all items from the Survival Air Support Armory.

Silent Knight Complete a predator encounter using only silent takedowns in the Main Story

Bring Down the House Explore Fort Wolcott.

First Among Equals Win a match of skirmish or domination.

Meat and Greet Complete mission “Enter the Psychoscape”.

A New Hope Play every multiplayer game mode in the original game

Hunter Mastery Fully upgrade a Hunter Subclass.

Twice Nightly Complete New Game Plus

Silver Revenge Obtain 48 medals on the original Arkham City ranked maps (as Batman)

Against Wood and Stone Fully upgrade a building in the Hideout

Sociopathic Networker Talked to all of Claptrap's Holographic Projections.

Better than a Bucket Equip legendary gear in all slots

The Angelic Ruins Completed the larger challenge in The Angelic Ruins coliseum

Bring 'em to Justice Capture all warrants alive in single-player

Unexpected Cargo Completed Unintended Consequences

A Complete Set See all the optional characters settled at the Homestead.

Dark Zone: Extraction Extract an item from each dark zone.

Warlock Mastery Fully upgrade a Warlock Subclass.

Good Form Complete your first kata

World's Greatest Detective Complete all case files in single-player

One Rule Save a life

The Thief Meet Gennojo

Can't Touch This Prevent the attacking team from touching the payload for 1 minute in Quick or Competitive Play.

Total Rampage! Destroy every single building and helicopter and win the final battle in Monster Escape (playing as the VR Monster).

One down, several to go Complete a Most Wanted entry

Pure Journey to the city unscathed.

Arms Dealer Buy all items from the Survival Weapon Armory.

Ruin on the Horizon Complete mission “Riding to Ruin”.

The Blast and the Furious Defeat Evil Lilith.

Decorated Complete 50 challenges.

He slimed me! Fail to capture all ghosts within the time limit in any of the rooms in Ghost House.

Timber! Singleplayer: In Rescue the Rescuers, chop down 5 trees with the Minigun